If your often fairly up-to-date computer with an Intel® processor has enabled running Intel® Virtualization Technology on Microsoft Windows or Apple Mac OS, then you can use the Intel® Hardware Accelerated Execution Manager (Intel® HAXM), or KVM for Linux. This means that the actual hardware is faster than the Android Emulator, but as said earlier it’s not a big deal to speed up the android's emulator. The main reason behind the slow speed is that it emulates the ARM CPU & GPU, which runs x86 code instead of the ARM code that runs on the actual hardware. Although Android's emulator execution is very slow and painful to work with, especially when using it into the debug mode, it can be sped up easily. If you are unhappy with the performance of Android emulator, this blog will help you.
